ICD-9-CM procedure code (retired)
11.91 — Tattooing of cornea
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-PCS equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 11.91
11.91 is an ICD-9-CM procedure code for tattooing of cornea. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-PCS took over.
The CMS General Equivalence Mappings translate it to 3 ICD-10-PCS codes, such as 3E0C3MZ (Introduction of Pigment into Eye, Percutaneous Approach), 3E0C7MZ (Introduction of Pigment into Eye, Via Natural or Artificial Opening) and 3E0CXMZ (Introduction of Pigment into Eye, External Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
Common questions about 11.91
What is the ICD-10 code for ICD-9 11.91?
- The GEMs map 11.91 to ICD-10-PCS 3E0C3MZ, 3E0C7MZ and 3E0CXMZ.
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.